1145519Sdarrenr/* $FreeBSD: releng/10.3/contrib/ipfilter/ipsend/sockraw.c 145519 2005-04-25 18:20:15Z darrenr $ */ 2145510Sdarrenr 3145510Sdarrenr/* 4145510Sdarrenr * (C)opyright 2000 Darren Reed. 5145510Sdarrenr * 6145510Sdarrenr * See the IPFILTER.LICENCE file for details on licencing. 7145510Sdarrenr * 8145510Sdarrenr * WARNING: Attempting to use this .c file on HP-UX 11.00 will cause the 9145510Sdarrenr * system to crash. 10145510Sdarrenr */ 11145510Sdarrenr#include <sys/param.h> 12145510Sdarrenr#include <sys/types.h> 13145510Sdarrenr#include <sys/socket.h> 14145510Sdarrenr#include <sys/ioctl.h> 15145510Sdarrenr 16145510Sdarrenr#include <net/if.h> 17145510Sdarrenr#include <netinet/in.h> 18145510Sdarrenr#include <netinet/in_systm.h> 19145510Sdarrenr#include <netinet/ip.h> 20145510Sdarrenr#include <netinet/if_ether.h> 21145510Sdarrenr#include <netinet/ip_var.h> 22145510Sdarrenr#include <netinet/udp.h> 23145510Sdarrenr#include <netinet/udp_var.h> 24145510Sdarrenr#include <netinet/tcp.h> 25145510Sdarrenr#include <stdio.h> 26145510Sdarrenr#include <string.h> 27145510Sdarrenr#include <unistd.h> 28145510Sdarrenr#include <stdlib.h> 29145510Sdarrenr#include <errno.h> 30145510Sdarrenr#include "ipsend.h" 31145510Sdarrenr 32145510Sdarrenr#if !defined(lint) && defined(LIBC_SCCS) 33145510Sdarrenrstatic char sirix[] = "@(#)sirix.c 1.0 10/9/97 (C)1997 Marc Boucher"; 34145510Sdarrenr#endif 35145510Sdarrenr 36145510Sdarrenr 37145510Sdarrenrint initdevice(char *device, int tout) 38145510Sdarrenr{ 39145510Sdarrenr struct sockaddr s; 40145510Sdarrenr struct ifreq ifr; 41145510Sdarrenr int fd; 42145510Sdarrenr 43145510Sdarrenr memset(&ifr, 0, sizeof(ifr)); 44145510Sdarrenr strncpy(ifr.ifr_name, device, sizeof ifr.ifr_name); 45145510Sdarrenr 46145510Sdarrenr if ((fd = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0) 47145510Sdarrenr { 48145510Sdarrenr perror("socket(AF_INET, SOCK_RAW, IPPROTO_RAW)"); 49145510Sdarrenr return -1; 50145510Sdarrenr } 51145510Sdarrenr 52145510Sdarrenr if (ioctl(fd, SIOCGIFADDR, &ifr) == -1) 53145510Sdarrenr { 54145510Sdarrenr perror("ioctl SIOCGIFADDR"); 55145510Sdarrenr return -1; 56145510Sdarrenr } 57145510Sdarrenr 58145510Sdarrenr bzero((char *)&s, sizeof(s)); 59145510Sdarrenr s.sa_family = AF_INET; 60145510Sdarrenr bcopy(&ifr.ifr_addr, s.sa_data, 4); 61145510Sdarrenr if (bind(fd, &s, sizeof(s)) == -1) 62145510Sdarrenr perror("bind"); 63145510Sdarrenr return fd; 64145510Sdarrenr} 65145510Sdarrenr 66145510Sdarrenr 67145510Sdarrenr/* 68145510Sdarrenr * output an IP packet 69145510Sdarrenr */ 70145510Sdarrenrint sendip(int fd, char *pkt, int len) 71145510Sdarrenr{ 72145510Sdarrenr struct ether_header *eh; 73145510Sdarrenr struct sockaddr_in sin; 74145510Sdarrenr 75145510Sdarrenr eh = (struct ether_header *)pkt; 76145510Sdarrenr bzero((char *)&sin, sizeof(sin)); 77145510Sdarrenr sin.sin_family = AF_INET; 78145510Sdarrenr pkt += 14; 79145510Sdarrenr len -= 14; 80145510Sdarrenr bcopy(pkt + 12, (char *)&sin.sin_addr, 4); 81145510Sdarrenr 82145510Sdarrenr if (sendto(fd, pkt, len, 0, &sin, sizeof(sin)) == -1) 83145510Sdarrenr { 84145510Sdarrenr perror("send"); 85145510Sdarrenr return -1; 86145510Sdarrenr } 87145510Sdarrenr 88145510Sdarrenr return len; 89145510Sdarrenr} 90